RE: [PATCH V3 3/4] ARM: dts: tegra: Correct PCIe entry

From: Jay Agarwal
Date: Tue Jun 11 2013 - 00:53:32 EST



> On Wed, Jun 05, 2013 at 12:27:31AM +0530, Jay Agarwal wrote:
> [...]
> > @@ -29,7 +29,7 @@
> > ranges = <0x82000000 0 0x00000000 0x00000000 0 0x00001000
> /* port 0 configuration space */
> > 0x82000000 0 0x00001000 0x00001000 0 0x00001000
> /* port 1 configuration space */
> > 0x82000000 0 0x00004000 0x00004000 0 0x00001000
> /* port 2 configuration space */
> > - 0x81000000 0 0 0x02000000 0 0x00010000 /*
> downstream I/O */
> > + 0x81000000 0 0 0x02000000 0 0x00100000 /*
> downstream I/O */
> > 0x82000000 0 0x20000000 0x20000000 0 0x10000000
> /* non-prefetchable memory */
> > 0xc2000000 0 0x30000000 0x30000000 0 0x10000000>;
> /*
> > prefetchable memory */
>
> That increases the I/O region size from 64 KiB to 1 MiB. Why is that
> necessary? I/O operations can only address 64 KiB, so I don't think adding
> more makes any sense.
>
Okay, you can keep it 64KiB then, I did it to match with downstream.
Please let me know if you want me to upload new patch for this or you will take care while integrating.
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